SAN RAMON (CBS SF) — Police in San Ramon on Friday are investigating a bank robbery that occurred earlier this week and may have been committed by a man who robbed the same bank last month.

Officers with the San Ramon Police Department responded at 1:27 p.m. Tuesday to a report of a robbery at the U.S. Bank at 2821 Crow Canyon Road.

READ MORE: Wild Fan Celebration Erupts Following San Francisco 49ers Last-Second Playoff Win

Police said a suspect entered the bank, contacted several bank tellers and demanded money.

The suspect, who appeared to be armed with a firearm, possibly a revolver, told the tellers to give him large bills, police said.

Police said they believe the same suspect robbed the same bank location on Feb. 6.

READ MORE: San Francisco 49ers Special Teams Spark 13-10 Upset Of Green Bay Packers To Advance To NFC Championship Game

In that robbery, it appeared the suspect also had a revolver, police said.

During the previous robbery, prior to leaving the bank, the suspect directed one of the employees to accompany him out of the building.

The suspect walked with the employee for about 150 yards to a residential area before directing the employee to return to the bank.

The suspect is described as a white man, 40 to 45 years old and was wearing a navy hooded sweatshirt, gray pants, a light colored baseball hat and black sunglasses.

MORE NEWS: UPDATE: Wind-Whipped Wildfire Near Big Sur Forces Evacuations; 'Some Pretty Surreal Fire Behavior'

TM and © Copyright 2017 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2017 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Bay City News Service contributed to this report.